/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    font-family: 'Arial', sans-serif;
}

/* 导航按钮容器 */
.nav-buttons {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 15px;
    z-index: 1000;
}

/* 导航按钮样式 */
.nav-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    color: #2c3e50;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    background: #fff;
}

/* 主内容容器 */
.main-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    text-align: center;
}

/* 艺术字标题 */
.hero-title {
    font-size: 4rem;
    margin-bottom: 2rem;
    background: linear-gradient(45deg, #2c3e50, #3498db);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
    font-family: 'Georgia', serif;
}

/* 网站描述 */
.description {
    max-width: 800px;
    font-size: 1.2rem;
    line-height: 1.8;
    color: #4a5568;
    margin-bottom: 3rem;
    padding: 0 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }

    .nav-buttons {
        top: 15px;
        right: 15px;
        gap: 10px;
    }

    .nav-btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    /* 设置背景图片 */
    background-image: url('/static/imgs/back.jpg');
    /* 设置背景图片不重复 */
    background-repeat: no-repeat;
    /* 设置背景图片覆盖整个页面 */
    background-size: cover;
    /* 背景图片固定，页面滚动时不移动 */
    background-attachment: fixed;
}